Vulnerability · Published Mar 16, 2022 · Assigned by GitHub_M

CVE-2022-24751Race condition in Zulip

Medium 5.4

In plain English

A medium-severity race condition in zulip from zulip. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities).

Severity (CVSS 3.1)5.4Medium

Exploit odds (30 days)1.0%top 38.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Zulip is an open source group chat application. Starting with version 4.0 and prior to version 4.11, Zulip is vulnerable to a race condition during account deactivation, where a simultaneous access by the user being deactivated may, in rare cases, allow continued access by the deactivated user. A patch is available in version 4.11 on the 4.x branch and version 5.0-rc1 on the 5.x branch. Upgrading to a fixed version will, as a side effect, deactivate any cached sessions that may have been leaked through this bug. There are currently no known workarounds.

Affected products (as reported)

Vendor	Product	Versions
zulip	zulip	>= 4.0, < 4.11

Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

References

https://github.com/zulip/zulip/security/advisories/GHSA-6v98-m5x5-phqj x_refsource_CONFIRM
https://github.com/zulip/zulip/commit/62ba8e455d8f460001d9fb486a6dabfd1ed67717 x_refsource_MISC
https://github.com/zulip/zulip/commit/e6eace307ef435eec3395c99247155efed9219e4 x_refsource_MISC